Answer:
44.1 g/mol
Explanation:
Step 1: Convert the temperature to the Kelvin scale.
We will use the following expression.
K = °C + 273.15
K = -73°C + 273.15
K = 200 K
Step 2: Convert the pressure to atm
We will use the relationship 1 atm = 760 torr.
[tex]1,140torr \times \frac{1atm}{760torr} = 1.50 atm[/tex]
Step 3: Calculate the molar mass of the gas
We will use the following equation derived from the ideal gas equation.
[tex]P \times M = \rho \times R \times T\\M = \frac{\rho \times R \times T}{P} = \frac{4.03g/L \times \frac{0.0821atm.L}{mol.K} \times 200K}{1.50atm} = 44.1 g/mol[/tex]
